refactor: move app directories

frontend/vite.config.ts

@@ -0,0 +1,17 @@
+import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react";
+import tailwindcss from "@tailwindcss/vite";
+import tsConfigPaths from "vite-tsconfig-paths";
+import { tanstackRouter } from "@tanstack/router-plugin/vite";
+
+export default defineConfig({
+  plugins: [
+    tsConfigPaths(),
+    tailwindcss(),
+    tanstackRouter({
+      target: "react",
+      autoCodeSplitting: true,
+    }),
+    react(),
+  ],
+});